Home / 83,414.60-115,072.14-80,192.12

Finding the Fourth Proportional to 83,414.60, 115,072.14 and 80,192.12

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Solution

The fourth proportional to 83,414.60, 115,072.14 and 80,192.12 is: 110,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,414.60 : 115,072.14 = 80,192.12 : x
  2. Step 2: Convert to fraction form
    83,414.60/115,072.14 = 80,192.12/x
  3. Step 3: Cross multiply
    83,414.60x = 115,072.14 × 80,192.12
  4. Step 4: Simplify right side
    83,414.60x = 9,227,878,284.18
  5. Step 5: Solve for x
    x = 9,227,878,284.18/83,414.60
  6. Step 6: Final answer
    x = 110,626.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.